clean throttle body
#3
I used to use Canadian Tire MotoMaster Throttle Body Cleaner, for cleaning the inside of a high mileage 91 Civic Si's throttle body (while still attached, just disconnect the rubber hose from the TB), but it also probably cleaned up deposits inside the cylinders, and I suspect also cleaned the o2 sensor, too, without removing the 02 sensor. Every 6 months the car would start to run rough/poorly/sputter/hard to start, and this stuff would cure it in minutes! I must have done this 10 times; I replaced the engine at 250,000km, but the O2 was still in the car when I traded it at 295,000. You could see the stuff wash away the yellow/brown varnish that builds up, typically from crankcase gas that is fed into the air intake.
The product is in an aerosol can, with a nozel and detatchable plastic tube.
The product is in an aerosol can, with a nozel and detatchable plastic tube.
#5
Moderator
IMO, if it isn't too difficult, disassemble the whole thing and clean it. That's probably the most effective way, if you have a lot of time on your hands.
Otherwise, I think you shut the engine off, spray the stuff, wait a few minutes, wipe it off, and repeat...I'll do mine one of these days...LOL.
Otherwise, I think you shut the engine off, spray the stuff, wait a few minutes, wipe it off, and repeat...I'll do mine one of these days...LOL.
#6
Follow the instructions on the can, but for part of the cleaning leave the engine running, while you spray into the exposed TB. The engine will start to bog/sputter and I used to need to work the throttle by hand to keep the car running while spraying, or else just stop spraying for a few seconds, with the engine digests it.
I haven't looked to see how DBW will affect your ability to work the throttle by hand.
This used to be part of my standard pre-emissions test clean-up (plus a couple of tanks of Sunoco 94 which has ethanol)
I haven't looked to see how DBW will affect your ability to work the throttle by hand.
This used to be part of my standard pre-emissions test clean-up (plus a couple of tanks of Sunoco 94 which has ethanol)
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#9
I'm really curious why you're asking about the TB? Unless you have a high mileage TSX, I can't imagine that the TB is dirty at typical normal miles at this state probably around 20-40K, for a 2004 TSX at least.
Then again, I'm the one to speak...I clean my Tundra's TB every year and replace afterwards with a new fresh air filter.
Then again, I'm the one to speak...I clean my Tundra's TB every year and replace afterwards with a new fresh air filter.
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